It worked the first time. The only changes I made were to set the script with the proper variables for my site.

Then I went ahead and modified the scripts so I had 7 days of daily backups and created a second script and cron job for 8 weeks of weekly backups. What is great about this script is I can set the frequency of the Cron jobs such that I tested the full run in one day. I set the daily script to run every 5 minutes and the weekly script every hour.